mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-01 15:00:00 +00:00
62 lines
2.4 KiB
Go
62 lines
2.4 KiB
Go
// Copyright 2022 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
//go:build go1.21
|
|
|
|
package slog
|
|
|
|
import (
|
|
"log/slog"
|
|
)
|
|
|
|
// A Level is the importance or severity of a log event.
|
|
// The higher the level, the more important or severe the event.
|
|
type Level = slog.Level
|
|
|
|
// Level numbers are inherently arbitrary,
|
|
// but we picked them to satisfy three constraints.
|
|
// Any system can map them to another numbering scheme if it wishes.
|
|
//
|
|
// First, we wanted the default level to be Info, Since Levels are ints, Info is
|
|
// the default value for int, zero.
|
|
//
|
|
// Second, we wanted to make it easy to use levels to specify logger verbosity.
|
|
// Since a larger level means a more severe event, a logger that accepts events
|
|
// with smaller (or more negative) level means a more verbose logger. Logger
|
|
// verbosity is thus the negation of event severity, and the default verbosity
|
|
// of 0 accepts all events at least as severe as INFO.
|
|
//
|
|
// Third, we wanted some room between levels to accommodate schemes with named
|
|
// levels between ours. For example, Google Cloud Logging defines a Notice level
|
|
// between Info and Warn. Since there are only a few of these intermediate
|
|
// levels, the gap between the numbers need not be large. Our gap of 4 matches
|
|
// OpenTelemetry's mapping. Subtracting 9 from an OpenTelemetry level in the
|
|
// DEBUG, INFO, WARN and ERROR ranges converts it to the corresponding slog
|
|
// Level range. OpenTelemetry also has the names TRACE and FATAL, which slog
|
|
// does not. But those OpenTelemetry levels can still be represented as slog
|
|
// Levels by using the appropriate integers.
|
|
//
|
|
// Names for common levels.
|
|
const (
|
|
LevelDebug Level = slog.LevelDebug
|
|
LevelInfo Level = slog.LevelInfo
|
|
LevelWarn Level = slog.LevelWarn
|
|
LevelError Level = slog.LevelError
|
|
)
|
|
|
|
// A LevelVar is a Level variable, to allow a Handler level to change
|
|
// dynamically.
|
|
// It implements Leveler as well as a Set method,
|
|
// and it is safe for use by multiple goroutines.
|
|
// The zero LevelVar corresponds to LevelInfo.
|
|
type LevelVar = slog.LevelVar
|
|
|
|
// A Leveler provides a Level value.
|
|
//
|
|
// As Level itself implements Leveler, clients typically supply
|
|
// a Level value wherever a Leveler is needed, such as in HandlerOptions.
|
|
// Clients who need to vary the level dynamically can provide a more complex
|
|
// Leveler implementation such as *LevelVar.
|
|
type Leveler = slog.Leveler
|